An Object-Oriented Approach to the Design of Dialogue Management Functionality Ian M O’Neill author Michael F McTear author 1999-06 text Ninth Conference of the European Chapter of the Association for Computational Linguistics Henry S Thompson editor Alex Lascarides editor Association for Computational Linguistics Bergen, Norway conference publication oneill-mctear-1999-object https://aclanthology.org/E99-1004/ 1999-06 23 29